/*适配主流设备*/
@media screen and (device-width:320px){
  html{
    font-size:16px;
  }
}
@media screen and (device-width:360px){
  html{
     font-size:18px;
  }
}
@media screen and (device-width:375px){
  html{
    font-size:18.75px;
  }
}
@media screen and (device-width:414px){
  html{

  }
}
@media screen and (device-width:375px){
  html{
    font-size:18.75px;
  }
}